<template>
  <div>
    <div class="search">
      <input v-model="keyword" class="search-input" type="text" placeholder="输入城市名或拼音">
    </div>
    <div class="search-content" ref="wrapper" v-show="keyword">
      <ul>
        <li class="search-item border-bottom" v-for="item of list" :key="item.id" @click="handleCityClick(item.name)">{{ item.name }}</li>
        <li class="search-item border-bottom" v-if="hasList">没有找到你所在的城市</li>
      </ul>
    </div>
  </div>
</template>

<script>
import Bscroll from 'better-scroll'
export default {
  name: 'CitySearch',
  props: {
    cities: Object
  },
  data () {
    return {
      keyword: '',
      timer: null,
      list: []
    }
  },
  methods: {
    handleCityClick (city) {
      this.$store.dispatch('changeCity', city)
      this.$router.push('/')
    }
  },
  watch: {
    keyword () {
      if (!this.keyword) {
        this.list = []
        return
      }
      let res = []
      for (let item in this.cities) {
        this.cities[item].forEach(function (value) {
          if (value.spell.indexOf(this.keyword) > -1 || value.name.indexOf(this.keyword) > -1) {
            res.push(value)
          }
        }.bind(this))
      }
      this.list = res
    }
  },
  mounted () {
    this.Bscroll = new Bscroll(this.$refs.wrapper)
  },
  computed: {
    hasList () {
      return !this.list.length
    }
  }
}
</script>

<style lang="stylus" scoped>
  @import "~styles/varibles.styl"
  .search
    padding 0 .1rem
    background-color: $bgColor
    height: .72rem
    .search-input
      box-sizing border-box
      color #666
      height: .62rem
      line-height: .62rem
      width: 100%
      text-align: center
      border-radius: .06rem
      padding: 0 .1rem
  .search-content
    z-index:1
    overflow: hidden
    position: absolute
    top: 1.58rem
    left: 0
    right: 0
    bottom: 0
    background-color: #eee
    .search-item
      line-height: .62rem
      padding-left: .2rem
      color: #666
      background-color: #fff
</style>
